Re: [infinispan-dev] Per-invocation flag wiki
On May 16, 2011, at 2:23 PM, Emmanuel Bernard wrote:
Your description explains a use case / pattern but wo code showing
how to implement it properly.
True and I think you have a point, though the use of putForExternalRead() itself is
something that should be documented either its javadoc or a separate wiki.
This wiki should be limited to explaining the actual flags.
In this case what's the best way for me to verify that the new
data has indeed been pushed to the cache?
put and then immediate get
Put, wait, get
Put all entries, then get all entries, and loop till all entries supposedly put are
indeed present.
Same as above but with some kind of batch size instead of all the data set?
Or is there some kind of queue/log I can look for to get the reliable list of failures?
If you need immediate verification I would not use putForExternalRead() but maybe a
putAsync() with the flags you want which returns you a future and allows you to verify the
result in a less wacky way.
The normal use case of PFER is:
1. Check the cache whether an k/v is present
2. If not present, go to db and call PFER with it.
3. Use whatever you retrieved from db to do your job.
...
N. Check the cache whether k/v is present
N+1. Oh, it's present, so just use it instead of going to DB.
This could be a good FAQ, wdyt?
Emmanuel
On 16 mai 2011, at 10:20, Galder Zamarreño <galder(a)redhat.com> wrote:
> More wikis. I've just created http://community.jboss.org/docs/DOC-16803 which
explains what Infinispan flags are, what they're used for...etc.
>
> Feedback appreciated
> --
> Galder Zamarreño
> Sr. Software Engineer
> Infinispan, JBoss Cache
>
>
> _______________________________________________
> infinispan-dev mailing list
> infinispan-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/infinispan-dev
_______________________________________________
infinispan-dev mailing list
infinispan-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/infinispan-dev
--
Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache